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frutty [35]
3 years ago
5

I need know what is x .

Mathematics
2 answers:
lys-0071 [83]3 years ago
7 0

Answer:

21 x +6 =90⁰( Alternate exterior angles)

=) 21x =84

=) x =84/21 = 4

irina [24]3 years ago
3 0

Answer:

x is 4

Step-by-step explanation:

21x+6 = 90

21x=84

x=4

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Convert 1.46 radian angle into degrees. Round decimal answers to nearest tenth. Use 3.14 for pi.
natulia [17]

Answer:

83.7°

Step-by-step explanation:

180° : pi

180 : 3.14

X : 1.46

180/3.14 = X/1.46

X = 1.46 × 180/3.14

X = 83.6942675159

X = 83.7°

5 0
3 years ago
if the price of an article is without tax is ₹ 800, and the price with tax is ₹ 860 the sales tax rate is_____________
vivado [14]

9514 1404 393

Answer:

  7.5%

Step-by-step explanation:

The tax as a proportion of the selling price is ...

  ₹(860 -800)/₹800 = 60/800 = 0.075 = 7.5%

7 0
2 years ago
A 1200 kg car rolling on a horizontal surface has speed v = 50 km/h when it strikes a horizontal coiled spring and is brought to
tangare [24]
When the car is moving, it has Kinetic Energy. As soon as the car entercount with the spring, its Kinetic Energy will transfer to Elastic Potential Energy. 

<span>KE = EPE </span>
<span>1/2mv^2 = 1/2kx^2 </span>

<span>change the speed into m/s </span>
<span>50 km/hr = 13.9 m/s </span>

<span>1/2(1200)(13.9)^2 = 1/2k(2.2)^2 </span>

<span>now you do the math to solve for k.
k= 115926/2.42
K= 47903.30</span>
8 0
3 years ago
How do you solve this step by step?
nikklg [1K]

Answer:

-2/9

Step-by-step explanation:

first you are going to distrubute 2/5, so 2/5 times x is 2/5x and 2/5 times -2 is -4/5

next you set up the problem with those two answers which gives you:

2/5x - 4/5 = 4x

then multiply both sides of the equation by 5: 2x-4=20x

next move the constant to the right side and chnage the sign: 2x=20x+4

then combine like terms: -18x=4

after that divide both sides of the equation by -18: -2/9

so x= -2/9

7 0
3 years ago
Read 2 more answers
What’s the right number to enter for this question ?
Lena [83]

Answer: 2

Step-by-step explanation:

Multiply by 2 each side and the result will give the numbers of the larger triangle.

8 0
3 years ago
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